Unlock instant, AI-driven research and patent intelligence for your innovation.

Shielded high-voltage or medium-voltage electrical equipment with improved installation and comprising a rotating shaft and a movable contactor driven by said shaft, and use in three-phase substations

A contactor and high-voltage technology, which is applied in the direction of high-voltage air circuit breakers, electrical components, contact drive mechanisms, etc., can solve the problem of not being able to fasten the switch at an angle

Inactive Publication Date: 2016-01-13
ALSTOM TECH LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Likewise, the disclosed shaft 50 cannot secure the switch at an angle

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shielded high-voltage or medium-voltage electrical equipment with improved installation and comprising a rotating shaft and a movable contactor driven by said shaft, and use in three-phase substations
  • Shielded high-voltage or medium-voltage electrical equipment with improved installation and comprising a rotating shaft and a movable contactor driven by said shaft, and use in three-phase substations
  • Shielded high-voltage or medium-voltage electrical equipment with improved installation and comprising a rotating shaft and a movable contactor driven by said shaft, and use in three-phase substations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] figure 1 Part of an electrical switching substation 50 is shown having three phases A, B, C comprising three identical enclosures 57 each housing a switch 50a, 50b, 50c. These three identical casings 57 are arranged in a common metal groove 10 and are fastened to the insulating plate 11 by respective studs 12 at respective single fastening points. The three switches 50a, 50b, 50c (ie their casings 57) are arranged parallel to each other in the metal slot 10 and in the plane of movement of the movable contacts 51, 55 of said switches. Furthermore, the movable contacts 51 , 55 of the three switches 50a, 50b, 50c are rotationally driven by a rotary drive shaft 40 which itself is driven by an actuator (not shown) arranged outside said slot 10 . In addition, if figure 1 As shown in , the axis X of the drive shaft 40 is spaced apart from the axis of positioning of each stud 12 defining a separate fastening point of the housing 57 to the insulating part 11 .

[0046] Eac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a solution for mounting a metal casing (57) inside a metal tank (10) of electrical equipment (A, B, C). The casing is attached, at one point (12), to an insulating part (11) and houses, within said casing, at least one movable contact (51, 55) of a switch, the rotation shaft of which is segmented into two portions that are arranged laterally on both sides of the movable contact and directly or indirectly held by the tank. A connection means is provided for connecting the casing (57) to the tank, said connection means including a rod and being arranged so as to longitudinally provide an axial play along the rod between at least a portion of the rod and the casing, and / or a means is provided for rotatably connecting the shaft portions therebetween and with the contact or with at least one element for intermediately driving the contact. One and / or the other of the axial plays make it possible to compensate heat expansion that can be produced between the tank and the insulating part and moreover make it possible to reduce the rotation of the casing around the point of attachment onto the insulating part.

Description

technical field [0001] The invention relates to a gas-insulated high or medium voltage electrical switchgear comprising a drive shaft and a movable contact driven by said shaft. [0002] The invention relates more particularly to the installation of said electrical switching device. [0003] The invention is mainly applied to three-phase gas-insulated substations, in which the switches of the three phases are accommodated in a common metal tank. Background technique [0004] Three-phase gas insulated substations are known in which switches are housed in a common metal tank, the movable contactors of which are driven by a common rotating drive shaft (also called control shaft) supported by the metal tank. [0005] Thus, document DE19816366C1 discloses an arrangement of two- or three-position switches in a common metal tank filled with insulating gas. The movable contacts of these switches 22, 32, 42 are driven in rotation by means of a lever 61 fastened to the rotary drive ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/46H01H31/00H01H31/02H02B13/035
CPCH01H31/023H01H3/46H01H31/003H01H31/32H01H2009/0094H02B13/0352
Inventor 卢卡斯·特赖尔
Owner ALSTOM TECH LTD